Ponerorchis graminifolia is a small, some would say miniature, variable terrestrial species. The species itself is rather a dull plant, so the plants we commonly see are cultivars, which as a group are called "Uchouran". They are not regarded as hardy with a recommended winter minimum of 5C during dormancy, however, my tubers did fine on the floor in an unheated greenhouse, under the bench, in zone 8b. They are best kept out of direct sunlight, watering as the medium dries.